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| luminous radiation; visible radiation | |||
| radiant energy; visible radiation (od 4.000 do 7000 A tj. lubičasta, plava, plavo-zelena, zelena, žuta, narandžasta i ervena boja) | |||
| visible emission; visible light | |||
| vidljivo zračenje: 4 phrases in 2 subjects |
| Optics branch of physics | 1 |
| Technology | 3 |